drop (imperial) | 1 gtt | 2 gtt | 3 gtt | 4 gtt | 5 gtt | 6 gtt | 7 gtt | 8 gtt | 9 gtt | 10 gtt | 11 gtt | 12 gtt | 13 gtt | 14 gtt | 15 gtt | 16 gtt | 17 gtt | 18 gtt | 19 gtt | 20 gtt | 21 gtt | 22 gtt | 23 gtt | 24 gtt | 25 gtt | 26 gtt | 27 gtt | 28 gtt | 29 gtt | 30 gtt | 31 gtt | 32 gtt | 33 gtt | 34 gtt | 35 gtt | 36 gtt | 37 gtt | 38 gtt | 39 gtt | 40 gtt | 41 gtt | 42 gtt | 43 gtt | 44 gtt | 45 gtt | 46 gtt | 47 gtt | 48 gtt | 49 gtt | 50 gtt | 51 gtt | 52 gtt | 53 gtt | 54 gtt | 55 gtt | 56 gtt | 57 gtt | 58 gtt | 59 gtt | 60 gtt | 61 gtt | 62 gtt | 63 gtt | 64 gtt | 65 gtt | 66 gtt | 67 gtt | 68 gtt | 69 gtt | 70 gtt | 71 gtt | 72 gtt | 73 gtt | 74 gtt | 75 gtt | 76 gtt | 77 gtt | 78 gtt | 79 gtt | 80 gtt | 81 gtt | 82 gtt | 83 gtt | 84 gtt | 85 gtt | 86 gtt | 87 gtt | 88 gtt | 89 gtt | 90 gtt | 91 gtt | 92 gtt | 93 gtt | 94 gtt | 95 gtt | 96 gtt | 97 gtt | 98 gtt | 99 gtt | 100 gtt |
Imperial fluid ounce | 0.0034722 fl oz (imp) | 0.0069444 fl oz (imp) | 0.0104167 fl oz (imp) | 0.0138889 fl oz (imp) | 0.0173611 fl oz (imp) | 0.0208333 fl oz (imp) | 0.0243056 fl oz (imp) | 0.0277778 fl oz (imp) | 0.0312500 fl oz (imp) | 0.0347222 fl oz (imp) | 0.0381944 fl oz (imp) | 0.0416667 fl oz (imp) | 0.0451389 fl oz (imp) | 0.0486111 fl oz (imp) | 0.0520833 fl oz (imp) | 0.0555556 fl oz (imp) | 0.0590278 fl oz (imp) | 0.0625000 fl oz (imp) | 0.0659722 fl oz (imp) | 0.0694444 fl oz (imp) | 0.0729167 fl oz (imp) | 0.0763889 fl oz (imp) | 0.0798611 fl oz (imp) | 0.0833333 fl oz (imp) | 0.0868056 fl oz (imp) | 0.0902778 fl oz (imp) | 0.0937500 fl oz (imp) | 0.0972222 fl oz (imp) | 0.1006944 fl oz (imp) | 0.1041667 fl oz (imp) | 0.1076389 fl oz (imp) | 0.1111111 fl oz (imp) | 0.1145833 fl oz (imp) | 0.1180556 fl oz (imp) | 0.1215278 fl oz (imp) | 0.1250000 fl oz (imp) | 0.1284722 fl oz (imp) | 0.1319444 fl oz (imp) | 0.1354167 fl oz (imp) | 0.1388889 fl oz (imp) | 0.1423611 fl oz (imp) | 0.1458333 fl oz (imp) | 0.1493056 fl oz (imp) | 0.1527778 fl oz (imp) | 0.1562500 fl oz (imp) | 0.1597222 fl oz (imp) | 0.1631944 fl oz (imp) | 0.1666667 fl oz (imp) | 0.1701389 fl oz (imp) | 0.1736111 fl oz (imp) | 0.1770833 fl oz (imp) | 0.1805556 fl oz (imp) | 0.1840278 fl oz (imp) | 0.1875000 fl oz (imp) | 0.1909722 fl oz (imp) | 0.1944444 fl oz (imp) | 0.1979167 fl oz (imp) | 0.2013889 fl oz (imp) | 0.2048611 fl oz (imp) | 0.2083333 fl oz (imp) | 0.2118056 fl oz (imp) | 0.2152778 fl oz (imp) | 0.2187500 fl oz (imp) | 0.2222222 fl oz (imp) | 0.2256944 fl oz (imp) | 0.2291667 fl oz (imp) | 0.2326389 fl oz (imp) | 0.2361111 fl oz (imp) | 0.2395833 fl oz (imp) | 0.2430556 fl oz (imp) | 0.2465278 fl oz (imp) | 0.2500000 fl oz (imp) | 0.2534722 fl oz (imp) | 0.2569444 fl oz (imp) | 0.2604167 fl oz (imp) | 0.2638889 fl oz (imp) | 0.2673611 fl oz (imp) | 0.2708333 fl oz (imp) | 0.2743056 fl oz (imp) | 0.2777778 fl oz (imp) | 0.2812500 fl oz (imp) | 0.2847222 fl oz (imp) | 0.2881944 fl oz (imp) | 0.2916667 fl oz (imp) | 0.2951389 fl oz (imp) | 0.2986111 fl oz (imp) | 0.3020833 fl oz (imp) | 0.3055556 fl oz (imp) | 0.3090278 fl oz (imp) | 0.3125000 fl oz (imp) | 0.3159722 fl oz (imp) | 0.3194444 fl oz (imp) | 0.3229167 fl oz (imp) | 0.3263889 fl oz (imp) | 0.3298611 fl oz (imp) | 0.3333333 fl oz (imp) | 0.3368056 fl oz (imp) | 0.3402778 fl oz (imp) | 0.3437500 fl oz (imp) | 0.3472222 fl oz (imp) |
The drop is an approximated unit of measure of volume, the amount dispensed as one drop from a dropper or drip chamber. It is often used in giving quantities of liquid drugs to patients, and occasionally in cooking.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
drop (imperial) | gtt | ≡ 1⁄288 fl oz (imp) | = 98.6564670138×10−9 m3 | Imperial/US |
drops (imperial) | Imperial fluid ounces | drops (imperial) | Imperial fluid ounces |
---|---|---|---|
1 | = 0.0034722222222191 | 6 | = 0.020833333333315 |
2 | = 0.0069444444444382 | 7 | = 0.024305555555534 |
3 | = 0.010416666666657 | 8 | = 0.027777777777753 |
4 | = 0.013888888888876 | 9 | = 0.031249999999972 |
5 | = 0.017361111111095 | 10 | = 0.034722222222191 |
A fluid ounce (abbreviated fl oz, fl. oz. or oz. fl., old forms ℥, fl ℥, f℥, ƒ ℥) is a unit of volume (also called capacity) typically used for measuring liquids. Various definitions have been used throughout history, but only two are still in common use: the British Imperial and the United States customary fluid ounce. An imperial fluid ounce is 1⁄20 of an imperial pint, 1⁄160 of an imperial gallon or approximately 28.4 ml. A US fluid ounce is 1⁄16 of a US fluid pint and 1⁄128 of a US liquid gallon or approximately 29.57 ml, making it about 4% larger than the imperial fluid ounce.
Imperial fluid ounce
1 imperial fluid ounce | = | 1⁄160 | imperial gallon |
= | 1⁄40 | imperial quart | |
= | 1⁄20 | imperial pint | |
= | 1⁄5 | imperial gill | |
= | 8 | imperial fluid drams | |
= | 28.4130625 | millilitres | |
≈ | 1.733871455 | cubic inches | |
≈ | 0.960759940 | US fluid ounces | |
≈ | the volume of 1 avoirdupois ounce of water |
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
Imperial fluid ounce | fl oz (imp) | ≡ 1⁄160 gal (imp) | ≡ 28.4130625×10−6 m3 | Imperial/US |
Imperial fluid ounces | drops (imperial) | Imperial fluid ounces | drops (imperial) |
---|---|---|---|
1 | = 288.00000000026 | 6 | = 1728.0000000016 |
2 | = 576.00000000052 | 7 | = 2016.0000000018 |
3 | = 864.00000000078 | 8 | = 2304.0000000021 |
4 | = 1152.000000001 | 9 | = 2592.0000000023 |
5 | = 1440.0000000013 | 10 | = 2880.0000000026 |
drops (imperial) | Imperial fluid ounces |
---|---|
1 | = 0.0034722 |
288.0000000 | = 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |